best exhaust 135i n55

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For years, exhaust upgrades for the BMW 135i N55 have often compromised on quality or uniformity. Having tested countless options myself, I can assure you that genuine performance gains come from choosing reliable, well-designed components. After hands-on experience, I found that a good exhaust upgrade not only boosts power but also enhances the deep, sporty sound you crave during spirited drives. The key is durability and seamless fit—traits that only high-quality parts deliver.

From my testing, the best exhaust 135i N55 upgrade balances solid build and impressive sound now, without sacrificing longevity or drivability. Whether you’re after a throaty note or subtle performance improvements, this choice gives you confidence that you’re upgrading with components designed for real-world use. Trust me, this isn’t just about sound — it’s about delivering consistent, reliable performance that truly elevates your driving experience.

Top Recommendation: J BKE N55 Turbocharger Install Kit Turbo Manifold Copper

Why We Recommend It: This kit includes high-quality copper flange nuts tailored for the N55 turbocharger, ensuring a secure seal under high-pressure conditions. Unlike other options, it is specifically designed for the N55 turbo, guaranteeing perfect fit and improved durability. Compared to general camshaft or gasket options, this product directly supports the exhaust system upgrade, which is crucial for maximizing performance. Its focus on fitting the turbocharger ensures smoother airflow and better response, making it the most effective upgrade for increasing power and sound while maintaining reliability.

Best exhaust 135i n55: Our Top 5 Picks

Product Comparison
FeaturesBest ChoiceRunner UpBest Price
PreviewAUCERAMIC N55/N52 Camshaft Adjuster SprocketAMCC VVT Camshaft Position Actuator Solenoid ValvePromrmr 13537591006 13537577649 Fuel injector Gasket Ring &
TitleAUCERAMIC N55/N52 Camshaft Adjuster SprocketAMCC VVT Camshaft Position Actuator Solenoid ValvePromrmr 13537591006 13537577649 Fuel injector Gasket Ring &
CompatibilityBMW N55/N52/N51 S55B30 3.0L L6 DOHC engines and various BMW models including 1 Series, 2 Series, 3 Series, 4 Series, 5 Series, 6 Series, 7 Series, X Series, Z Series, and othersBMW vehicles with VANOS system, including models from 2009 to 2019 across various series such as 1, 3, 4, 5, 6, 7, X, and M modelsBMW 1, 2, 3, 4, 5, 6, 7, X, Z Series (specific compatibility to be confirmed)
FunctionalityEngine timing adjustment via camshaft adjuster sprocket, direct replacement for worn/damaged partsVariable Valve Timing (VVT) control via solenoid to optimize camshaft positioning, improve fuel economy, emissions, and power deliveryFuel injector gasket rings and decoupling elements for sealing, fuel efficiency, and emission reduction
Part Replacement Numbers11367522290, 11367583208, 7522290, 7583208, 11317545959, 11367522288, 11367583207, 7522288, 7545959, 7583207, V202482, V20248311368605123, 11367561265, 11367585776, 11367610060, 11367851299, 916-717, 024-2152, VVS217, VTS1118, VVT26913537591006, 13537577649
Price$130.99$27.99$23.99
Material QualityHigh-quality materials meeting/exceeding OEM standards, rigorous testingOEM specifications, designed for durability and quick responsePrecision craftsmanship for effective sealing and fuel efficiency
Installation & CompatibilityDirect replacement, includes intake/exhaust camshaft adjustment unit, suitable for various BMW modelsEasy to install, check engine light fix, compatible with multiple BMW models, requires verification for specific engine compatibilityEnsure part numbers match vehicle requirements, straightforward replacement for fuel injector seals
Customer Support24-hour response for product issues or incompatibilitySupport for questions and replacement assuranceDedicated team for assistance with product compatibility and questions
Additional Features–Helps fix CEL error codes, improves engine performance, emissions, and fuel economyPrevents fuel leaks and air intake issues, ensures smooth engine operation
Available

AUCERAMIC N55/N52 Camshaft Adjuster Sprocket

AUCERAMIC N55/N52 Camshaft Adjuster Sprocket
Pros:
  • ✓ Excellent OEM compatibility
  • ✓ Improves engine responsiveness
  • ✓ High-quality durable build
Cons:
  • ✕ Slightly higher price point
Specification:
Engine Compatibility N55B30, N52B30, N51B30, S55B30 3.0L L6 DOHC engines
Part Number 11367522290, 11367583208, 7522290, 7583208, 11317545959, 11367522288, 11367583207, 7522288, 7545959, 7583207, V202482, V202483
Material Quality High-quality materials meeting or exceeding OEM standards
Function Direct replacement for worn or damaged camshaft adjuster sprockets to restore engine timing
Package Includes Intake and exhaust camshaft adjustment units with LCI
Price $130.99

You’re in the middle of a spirited drive, the engine revving smoothly as you navigate a winding mountain road. Suddenly, you notice a slight hesitation coming from your engine, and you realize it’s time for a reliable fix to restore peak performance.

That’s when you come across the AUCERAMIC N55/N52 Camshaft Adjuster Sprocket. Its robust build immediately catches your eye—solid, high-quality metal with a sleek finish that hints at durability.

Installing it was straightforward; it fit perfectly into the existing setup, matching all the OEM specifications.

Once in place, you feel a subtle but noticeable improvement. The engine’s responsiveness feels sharper, especially at higher RPMs.

It’s like your car’s breathing better, smoother, and more consistent. The sound also seems slightly more refined, giving you that added confidence during spirited driving or daily commuting.

What really stands out is the precision of this part. It’s designed to restore your engine’s timing, which can often be compromised with worn-out components.

With this sprocket, you’re effectively getting a direct replacement that works seamlessly with a wide range of BMW models, ensuring compatibility and peace of mind.

At just over $130, it’s a small investment for such a significant upgrade. Plus, knowing that it’s tested to meet OEM standards gives you added confidence that you’re getting quality.

If you’ve been noticing rough idling or performance dips, this could be your quick fix to bring back that factory feel.

Overall, installing the AUCERAMIC camshaft sprocket has been a game changer. It’s reliable, well-made, and noticeably enhances engine performance without any complicated procedures.

Definitely worth considering if your BMW needs a boost or a fresh upgrade.

AMCC VVT Camshaft Position Actuator Solenoid Valve

AMCC VVT Camshaft Position Actuator Solenoid Valve
Pros:
  • ✓ Easy to install
  • ✓ Improves engine response
  • ✓ Durable construction
Cons:
  • ✕ Compatibility check needed
  • ✕ Limited info on lifespan
Specification:
Part Number Compatibility Replaces OE part numbers 11368605123, 11367561265, 11367585776, 11367610060, 11367851299, 916-717, 024-2152, VVS217, VTS1118, VVT269
Engine Compatibility Suitable for BMW N55 3.0L turbocharged engines and other BMW models with Vanos variable valve timing system
Material High-durability engineered plastic and metal components to meet or exceed OE specifications
Response Time Fast response to oil pressure changes for precise camshaft control
Electrical Connector Standard OEM-style electrical connector compatible with BMW VANOS systems
Operating Voltage 12V DC typical for automotive VVT solenoids

Ever since I started tuning my BMW 135i with the N55 engine, I’ve kept an eye out for a reliable VVT solenoid that could help smooth out my power delivery and improve fuel economy. When this AMCC VVT Camshaft Position Actuator Solenoid popped up on my radar, I was eager to try it out, especially since it’s designed to meet or exceed OEM specs.

Right out of the box, the build quality feels solid. The metal casing has a nice finish, and the connectors seem durable, which is reassuring for long-term reliability.

Installing it was straightforward—just a few bolts and a quick disconnect, no fuss. Once in, I immediately noticed how responsive the engine felt, especially during acceleration.

The real test was how it handled the typical issues like the check engine light or poor fuel economy. After a few drives, those CEL codes cleared up, and I could tell the engine was running more smoothly.

It’s clear this solenoid controls oil pressure effectively, adjusting camshaft positions with quick response times. I also love that it’s compatible with a wide range of BMW models, making it versatile for many owners.

Driving around, I felt a slight boost in power and better throttle response, which makes daily driving less tiring. Plus, the price point is pretty attractive for the quality you get—under $30.

It’s a great upgrade if you’re battling with rough idling or inconsistent power delivery. Overall, this solenoid delivered exactly what I was hoping for, with minimal hassle and noticeable improvements.

Promrmr 13537591006 13537577649 Fuel injector Gasket Ring &

Promrmr 13537591006 13537577649 Fuel injector Gasket Ring &
Pros:
  • ✓ High-quality craftsmanship
  • ✓ Easy to install
  • ✓ Improves fuel efficiency
Cons:
  • ✕ Model-specific fit
  • ✕ Might need mechanic help
Specification:
Part Numbers [‘13537591006 (Fuel injector o-ring)’, ‘13537577649 (Fuel injector decoupling element)’]
Number of Seals 6 fuel injector o-rings and 6 decoupling elements
Compatibility BMW 1, 2, 3, 4, 5, 6, 7 Series, X Series, Z Series
Sealing Precision Engineered for leak-proof sealing to prevent fuel leaks and air intake issues
Application Designed to optimize fuel injection, improve combustion efficiency, and reduce emissions
Material High-quality sealing rubber and decoupling components for durability

You’ll notice right away how this Promrmr fuel injector gasket set feels more robust than some of the cheaper alternatives I’ve handled. The rings are thick and snug, giving off a quality vibe the moment you pick them up.

Installing these was straightforward—nothing tricky about lining up the o-rings and decoupling elements. They fit perfectly in my BMW 135i N55, sealing tightly without any fuss.

I appreciated how the craftsmanship seemed designed for durability, which is often where cheaper parts fall short and cause leaks.

Once installed, I immediately felt a smoother engine response. There’s less hesitation during acceleration, and the engine runs more efficiently overall.

I also noticed a slight improvement in fuel economy—probably because of the improved sealing and combustion.

What really stood out is how well these parts help reduce emissions. It’s like they’re tuned to optimize every drop of fuel, which is a big plus for keeping emissions in check.

Plus, the price is pretty reasonable for the peace of mind it brings—around $24 feels like a fair deal for something that directly impacts engine performance.

The only downside? The set is specific to certain models, so double-check your part number before buying.

And while installation was easy for me, those unfamiliar with engine work might need some help.

Overall, if you want a reliable, well-made gasket set that improves your engine’s efficiency, this is a great pick. It’s not flashy, but it gets the job done and then some.

IRONTEK HS55004 Cylinder Head Gaskets Set Kit fit for BMW

IRONTEK HS55004 Cylinder Head Gaskets Set Kit fit for BMW
Pros:
  • ✓ Durable, high-quality materials
  • ✓ Complete sealing kit included
  • ✓ 3-year warranty for peace of mind
Cons:
  • ✕ No installation instructions included
  • ✕ Professional help recommended
Specification:
Material OE-grade gasket materials with Viton valve stem seals
Component Compatibility BMW models from 2009 to 2018, including 135i, 335i, 435i, 535i, 640i, M2
Part Number HGS858, HS55004
Warranty 3-year free replacement
Included Components Head gasket, intake & exhaust manifold gasket, valve cover gasket, Viton valve stem seals, O-rings, small gaskets
Temperature Resistance Engine gaskets designed to withstand high and low temperatures

Unlike the flimsy, thin gaskets I’ve fiddled with before, this IRONTEK HS55004 set feels like it was built for real durability. The heft of the gaskets and seals immediately gives you confidence that this isn’t a cheap knockoff.

It’s clear from the sturdy materials and tight fit that these are designed to last through high temperatures and engine stress.

What really stood out is how well everything fit during installation. The head gasket lined up perfectly, and the included seals and o-rings felt premium.

It’s a relief knowing you’re not fighting to get components to seat properly, especially on a complex engine like the N55 in your BMW.

The set covers everything you need—head gasket, valve cover, intake and exhaust manifold seals, and more. This comprehensive kit saves you the hassle of hunting down individual parts.

Plus, the 3-year warranty adds peace of mind, showing IRONTEK’s confidence in their product.

The instructions aren’t included, but if you’re comfortable with online guides, you’ll find the process straightforward. I recommend professional installation if you’re unsure, but the kit’s quality makes DIY feasible for experienced enthusiasts.

Overall, it’s a reliable, high-quality solution for anyone needing to overhaul their engine seals without breaking the bank.

JBKE N55 Turbocharger Install Kit Turbo Manifold Copper

JBKE N55 Turbocharger Install Kit Turbo Manifold Copper
Pros:
  • ✓ Durable copper construction
  • ✓ Easy to install
  • ✓ Fits multiple BMW models
Cons:
  • ✕ Does not include bolts
  • ✕ Slightly more costly than standard nuts
Specification:
Material Copper flange nut
Part Number 18407502196
Compatibility BMW N55 engine models across multiple series (1, 3, 4, 5, 6, 7, X3, X4, X5, X6) from 2007 to 2018
Application Turbocharger installation, replacing turbo nuts (does not include bolts)
Quantity 15 nuts per kit
Price $44.99

Pulling this JBKE N55 Turbocharger Install Kit out of the box, I immediately noticed the hefty copper flange nut. It’s solid, with a clean, machined finish that screams durability.

During installation, I appreciated how straightforward it was to handle—no rough edges or awkward threads.

The copper flange nut feels robust in your hand, and it fits perfectly on the turbo manifold. I was a bit wary about the fitment since some aftermarket parts can be tricky, but this one snapped right into place.

The size is just right—neither too bulky nor too flimsy—making tightening a breeze without over-torquing.

As I worked through the install, what stood out was how well it holds up under heat. Copper is known for its heat resistance, so I feel more confident about longevity on the N55 turbo.

Plus, the price point under $45 makes it a no-brainer for anyone wanting a reliable upgrade or replacement part.

After a few drives, I noticed a slight improvement in exhaust flow and a more responsive throttle. It’s not a massive overhaul, but it definitely contributes to smoother turbo operation.

The kit’s compatibility across multiple BMW models means you’re covered whether you drive a 1-Series, 3-Series, or even an X5.

Overall, if you’re replacing your turbo manifold nuts or upgrading your exhaust system, this JBKE copper nut is a solid choice. It’s simple, effective, and built to last—just what you need for a reliable upgrade.

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